3867326826409 has 4 divisors (see below), whose sum is σ = 3867497148420. Its totient is φ = 3867156504400.

The previous prime is 3867326826403. The next prime is 3867326826443. The reversal of 3867326826409 is 9046286237683.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11464413184 + 3855862413225 = 107072^2 + 1963635^2 .

It is a cyclic number.

It is not a de Polignac number, because 3867326826409 - 2⁷ = 3867326826281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3867326826403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85126942 + ... + 85172359.

It is an arithmetic number, because the mean of its divisors is an integer number (966874287105).

Almost surely, 2^{3867326826409} is an apocalyptic number.

It is an amenable number.

3867326826409 is a deficient number, since it is larger than the sum of its proper divisors (170322011).

3867326826409 is a wasteful number, since it uses less digits than its factorization.

3867326826409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170322010.

The product of its (nonzero) digits is 125411328, while the sum is 64.

The spelling of 3867326826409 in words is "three trillion, eight hundred sixty-seven billion, three hundred twenty-six million, eight hundred twenty-six thousand, four hundred nine".